Improvements in knowledge acquisition and sensor know-how allow exact analysis and optimization of the elements essential for the way forward for sustainable transportation.
HEV and EV testing requires excessive bandwidth, dynamic vary, and correct voltage and present measurement capabilities. This demand stems from the necessity to consider the efficiency of electromotors and inverters, that are central to the propulsion methods of those superior automobiles. Information acquisition (DAQ) methods have advanced to satisfy these necessities by providing sooner processing and enhanced capabilities. One instance of such an instrument is the SIRIUS XHS from Dewesoft, designed to facilitate detailed motor efficiency evaluation throughout varied parameters, together with electrical and mechanical energy, effectivity, and thermal habits.
The SIRIUS XHS DAQ system boasts a pattern charge of 15 MS/s and a bandwidth of 5 MHz, enabling it to exactly seize high-frequency voltage and present alerts. This high-frequency functionality is essential for assessing and optimizing powertrain elements, notably in situations the place fast modifications in electrical parameters happen. By offering a high-resolution snapshot of motor and inverter efficiency, the SIRIUS XHS aids engineers in optimizing automobile powertrains for effectivity and efficiency.
SIRIUS XHS contains patented SuperCounters that allow engineers to attach torque and RPM sensors immediately. The system helps knowledge switch by way of the open OPC UA protocol, a well-liked commonplace that ensures compatibility with varied industrial methods. Moreover, the info is on the market over XCP or CAN protocols, simplifying the connection to ECU calibration software program packages.
Dewesoft’s DC-CT present transducer makes use of patented Platiše closed-loop know-how to constantly monitor residual magnetic flux, which ends from the differential between the first and secondary currents. Consequently, DC-CT offers the advantages of a zero-flux present transducer whereas decreasing energy consumption, permitting the sensor to be smaller. Consequently, DC-CT could be put in the place different sensors could not match.
The DC-CT transducer is utilized in motor testing, inverter evaluation, charging station analysis, and battery testing. Its excessive bandwidth permits it to investigate harmonics as much as 750 kHz and consider the PWM switching frequencies encountered in motor controllers. When mixed with the SIRIUS XHS DAQ system, the DC-CT transducer facilitates a complete evaluation of electrical and hybrid-electric automobile elements, notably in driving cycle exams just like the Worldwide Harmonised Gentle Car Take a look at Process (WLTP), which is essential for figuring out the vary of BEVs, HEVs, FCEVs, and PHEVs.
For probably the most demanding in-vehicle measurement, Dewesoft provides the SIRIUS-XHS-PWR, a rugged single voltage and single present unit with an built-in DC-CT present sensor. This unit combines SIRIUS XHS and DC-CT know-how, offering secure high-bandwidth measurements with as much as 2000 V voltage and as much as 2000 A present. The chassis is IP67 protected and operates throughout an excessive temperature vary of -20 °C to +70 °C (158 °F).
In abstract, Dewesoft’s DAQ methods, mixed with superior sensors just like the DC-CT present transducer, present engineers with strong instruments for buying synchronized, correct knowledge from a number of sensors. These applied sciences help complete testing, evaluation, and optimization of HEV/EV automobiles, aiding improvement throughout varied levels, from prototyping to efficiency validation. Via improvements in knowledge acquisition and sensor know-how, Dewesoft permits exact analysis and optimization of the electrified powertrain elements essential for the way forward for sustainable transportation.
